Timothy Ian McLaren: Catalogue data in Autumn Semester 2017

Name Dr. Timothy Ian McLaren
Address
ETH Zürich, Institut für Agrarwiss
Eschikon 33
FMG C19
8315 Lindau
SWITZERLAND
Telephone0061403961012
DepartmentEnvironmental Systems Science
RelationshipLecturer

NumberTitleECTSHoursLecturers
751-3405-00LChemical Nature of Nutrients and their Availability to Plants: The Case of Phosphorus Restricted registration - show details
Number of participants limited to 18.
4 credits4GE. Frossard, T. I. McLaren, L. P. Schönholzer
AbstractThe course will present the principles underlying the use of radioisotopes in soil/plant systems. It will present how the introduction of an isotope into a system can be done to get some information on the structure of the system. Case studies will be presented to determine element availability. Finally, published studies from other groups will be analyzed and presented by the students.
ObjectiveAt the end of this course the students are familiar with the principles on which radioisotope works are based and they have learned from case studies how radioisotopes can be used to obtain meaningful data. They are aware of the advantages of using radioisotopes in element cycling studies, but also of the risks and open questions related to isotope work.
ContentRadio-isotopes are extensively used at the soil/plant or ecosystem level to quantify the fluxes of elements (phosphorus (P), heavy metals, radionuclides) within a given system and to assess the importance of processes controlling these fluxes (e.g. exchange reactions between the soil solution and the soil solid phase, element turnover through the microbial biomass, organic matter mineralization etc.).
The course will first present the principles, the basic assumptions and the theoretical framework that underlay the work with radioisotopes. It will present how the introduction of an isotope into a system can be done so as to get information on the structure of the system (e.g. number and size of compartments). Secondly, case studies on isotopic dilution and tracer work will be presented for instance on the isotopic exchange kinetics method to determine nutrients or pollutants availability. The case studies will be adapted to the ongoing research of the group of plant nutrition and will thus give an insight into our current research. In addition, published studies will be analyzed and presented by the students. Finally, the advantages and disadvantages of work with radioisotopes will be analyzed and discussed critically.
Lecture notesDocuments will be distributed during the lecture
LiteratureWill be given during the lecture
Prerequisites / NoticeThe lecture will take place at the ETH experimental station in Eschikon Lindau. See the location of the station at: http://www.pe.ipw.agrl.ethz.ch/about/reach